On Mon, Dec 22, 2014 at 04:50:57PM +0100, Lars Kiesow wrote: > Hi everyone, > I'm an FFmpeg user for quite a while now and though I might as well > switch to dev at some point... > > Please find attached to this mail a simple audio filter which makes it > possible to extract and print volume information from audio streams. It > works more or less like the showinfo filters only that it returns the > pcm value information for each audio sample. > > This output can then be used to easily plot a waveform image like this: > http://larskiesow.de/waveform.png >
You might want to look at ebur128, volumedetect and showwaves filters... [...] -- Clément B.
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